Home / 84,855.60-117,106.56-47,129.04

Finding the Fourth Proportional to 84,855.60, 117,106.56 and 47,129.04

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Solution

The fourth proportional to 84,855.60, 117,106.56 and 47,129.04 is: 65,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,855.60 : 117,106.56 = 47,129.04 : x
  2. Step 2: Convert to fraction form
    84,855.60/117,106.56 = 47,129.04/x
  3. Step 3: Cross multiply
    84,855.60x = 117,106.56 × 47,129.04
  4. Step 4: Simplify right side
    84,855.60x = 5,519,119,750.50
  5. Step 5: Solve for x
    x = 5,519,119,750.50/84,855.60
  6. Step 6: Final answer
    x = 65,041.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.